EPSG systems

EPSG:22275 Cape / Lo15

Projected system (Transverse Mercator (South Orientated)) in use: Namibia - Walvis Bay. The full definition below, and conversion in one click.

EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.

System record
CodeEPSG:22275
NameCape / Lo15
TypeProjected system — Transverse Mercator (South Orientated)
Area of use Namibia - Walvis Bay
Bounds W 14,35° · S -23,15° · E 14,60° · N -22,68°
Countries Namibia
DatumCape
Ellipsoid Clarke 1880 (Arc) a = 6378249.145 m · 1/f = 293.4663077
Base geographic system EPSG:4222 — Cape
Unit metre (Y west, X south)
Transformation to WGS 84 No simple transformation published (ellipsoid alone)
ScopeCadastre, engineering survey, topographic mapping (large and medium scale).

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin15degree
Scale factor at natural origin1unity
False easting0metre
False northing0metre

proj4 definition

+proj=tmerc +axis=wsu +lat_0=0 +lon_0=15 +k=1 +x_0=0 +y_0=0 +a=6378249.145 +rf=293.4663077 +units=m +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:22275.

WKT (ESRI format, the .prj content)

PROJCS["Cape_Lo15",GEOGCS["GCS_Cape",DATUM["D_Cape",SPHEROID["Clarke_1880_Arc",6378249.145,293.4663077]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator_South_Orientated"],PARAMETER["latitude_of_origin",0.0],PARAMETER["central_meridian",15.0],PARAMETER["scale_factor",1.0],PARAMETER["false_easting",0.0],PARAMETER["false_northing",0.0],UNIT["Meter",1.0]]

All systems — Namibia

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.